A stirring device for intermediate frequency furnace smelting

Abstract

The utility model discloses a kind of stirring devices for intermediate frequency furnace smelting, including operation platform and intermediate frequency furnace, the upper portion of operation platform is close to intermediate frequency furnace and is equipped with lifting mechanism, lifting mechanism drives stirring mechanism vertically in and out intermediate frequency furnace;Stirring mechanism includes stirring shaft, stirring shaft is rotated by motor drive, the shaft body of stirring shaft is equipped with gland, multiple through holes are equipped around the center ring of gland, the shaft body of stirring shaft is located below gland and is equipped with stirring frame.The utility model lifting mechanism drives stirring mechanism to descend and insert into intermediate frequency furnace in proper position, the gland of stirring mechanism is pressed into furnace with upper portion furnace charge, while stirring frame rotates, to accelerate the melting of furnace charge, work is finished, stirring mechanism stops working, lifting mechanism drives stirring mechanism to move up, then lifting mechanism rotates to one side away from intermediate frequency furnace, insert pin is fixed, then continue to charge, to reach the purpose of improving production efficiency, reducing labor intensity of staff and eliminating safety hazard.

Description

Technical Field

[0001] This utility model relates to the field of aluminum processing technology, specifically to a stirring device for medium-frequency furnace melting. Background Technology

[0002] The current process of charging the intermediate frequency furnace in the recycled aluminum plant is as follows: After each aluminum tapping, the intermediate frequency furnace must leave 1 / 3 of its capacity of molten aluminum in the furnace. After charging the intermediate frequency furnace, in order to make the upper furnace charge quickly contact the high temperature molten aluminum and accelerate melting, manual tools are needed to continuously press the charge into the furnace. Each time the charge is added, the above work must be repeated a lot. The temperature is high for employees working at the furnace opening, and there are also great safety hazards. At the same time, the labor intensity of the above work is extremely high. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a stirring device for medium frequency furnace smelting, which is easy to use, improves production efficiency, reduces the labor intensity of employees, eliminates safety hazards, and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a stirring device for medium-frequency furnace smelting, comprising an operating platform and a medium-frequency furnace, wherein a lifting mechanism is provided on the upper part of the operating platform near the medium-frequency furnace, and the lifting mechanism drives the stirring mechanism to vertically enter and exit the medium-frequency furnace; the stirring mechanism includes a stirring shaft, which is driven to rotate by a motor, and a pressure cap is provided on the shaft body of the stirring shaft, with multiple through holes arranged around its center ring on the pressure cap, and a stirring frame is provided on the shaft body of the stirring shaft below the pressure cap.

[0005] Preferably, the lifting mechanism includes a housing, a lead screw is rotatably mounted on the housing, a motor for driving the lead screw to rotate is provided at the upper end of the housing, the lead screw is adapted to a lead screw nut seat, a fixed rod is connected to the lead screw nut seat, and the end of the fixed rod is rotatably connected to the stirring shaft of the stirring mechanism through a bearing.

[0006] Preferably, the lower end of the housing is provided with a mounting base, which is rotatably connected to the base via a bearing. The base is fixed on the operating table. The mounting base is provided with a pin, and both the mounting base and the base are provided with a socket that matches the pin.

[0007] Preferably, the upper and lower sides of the fixed rod are equipped with support rollers via wheel frames, and the support rollers are in rolling contact with the housing.

[0008] Preferably, it also includes a flue pipe, which is connected to a dust collection hood located above the intermediate frequency furnace, and a negative pressure fan is installed on the flue pipe.

[0009] Preferably, the diameter of the pressure cap is 5-10 cm smaller than the inner diameter of the medium-frequency furnace, and the pressure cap has a conical edge.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the lifting mechanism drives the stirring mechanism to descend and insert into the appropriate position in the medium frequency furnace. The pressure cover of the stirring mechanism presses the upper furnace charge into the furnace. At the same time, the stirring frame rotates, thereby accelerating the melting of the furnace charge. After the first operation is completed, the stirring mechanism stops working, the lifting mechanism drives the stirring mechanism to move upward, and then the lifting mechanism rotates to one side away from the medium frequency furnace, inserts a pin to fix it, and then continues to add material, repeating the above operation, thereby achieving the purpose of improving production efficiency, reducing the labor intensity of employees, and eliminating safety hazards. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a magnified view of a part of the structure of this utility model. Figure 1 ; Figure 3 This is a magnified view of a part of the structure of this utility model. Figure 2 .

[0012] In the diagram: 1. Operating platform, 2. Lifting mechanism, 2.1 Motor, 2.2 Housing, 2.3 Screw nut seat, 2.4 Screw, 2.5 Mounting seat, 2.6 Base, 2.7 Pin, 2.8 Fixing rod, 2.9 Support roller, 3. Dust collection hood, 4. Exhaust pipe, 5. Negative pressure fan, 6. Stirring mechanism, 6.1 Stirring shaft, 6.2 Through hole, 6.3 Pressure cap, 6.4 Stirring frame, 7. Medium frequency furnace. Detailed Implementation

[0013] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0014] Please see Figure 1-3 The present invention provides the following technical solution: Example 1: A stirring device for medium-frequency furnace smelting includes an operating platform 1 and a medium-frequency furnace 7. A lifting mechanism 2 is provided on the upper part of the operating platform 1 near the medium-frequency furnace 7. The lifting mechanism 2 drives a stirring mechanism 6 to move vertically in and out of the medium-frequency furnace 7. The stirring mechanism 6 includes a stirring shaft 6.1, which is driven to rotate by a motor. A pressure cap 6.3 is provided on the shaft body of the stirring shaft 6.1. The pressure cap 6.3 has multiple through holes 6.2 around its center. A stirring frame 6.4 is provided on the shaft body of the stirring shaft 6.1 below the pressure cap 6.3. The lifting mechanism 2 drives the stirring mechanism 6 to move vertically into and out of the intermediate frequency furnace 7. The pressure cover 6.3 of the stirring mechanism 6 quickly presses the upper furnace charge into the intermediate frequency furnace 7, where it comes into contact with the high-temperature aluminum liquid. The aluminum liquid flows through the through hole 6.2. At the same time, the stirring shaft 6.1 drives the stirring frame 6.4 to rotate, which accelerates the melting of the furnace charge and improves the work efficiency. It eliminates the need for operators to use tools to continuously press the material into the furnace, reducing the labor intensity of employees and eliminating potential safety risks. Specifically, the lifting mechanism 2 includes a housing 2.2, on which a lead screw 2.4 is rotatably mounted. A motor 2.1 is located at the upper end of the housing 2.2 to drive the lead screw 2.4 to rotate. The lead screw 2.4 is fitted with a lead screw nut seat 2.3, which is connected to a fixed rod 2.8. The end of the fixed rod 2.8 is rotatably connected to the stirring shaft 6.1 of the stirring mechanism 6 via a bearing. The motor 2.1 drives the lead screw 2.4 to rotate, and the lead screw 2.4, through the lead screw nut seat 2.3, drives the fixed rod 2.8 to move up and down, thereby driving the stirring mechanism 6 to vertically enter and exit the intermediate frequency furnace 7. In actual use, the stirring mechanism 6 should be coaxial with the intermediate frequency furnace 7. It should be noted that the diameter of the pressure cap 6.3 is 5-10cm smaller than the inner diameter of the medium-frequency furnace 7. The function of the pressure cap 6.3 is to press the upper furnace charge into the medium-frequency furnace 7 as the stirring mechanism 6 moves downward. The pressure cap 6.3 has a conical edge, which has a gathering effect, so that the upper furnace charge is gathered and pressed into the medium-frequency furnace 7. In addition, the stirring shaft 6.1, the pressure cap 6.3, and the stirring frame 6.4 are preferably made of wear-resistant and high-temperature resistant materials such as silicon nitride and silicon carbide to avoid metal corrosion.

[0015] Example 2: Unlike Example 1, the lower end of the housing 2.2 is provided with a mounting base 2.5. The mounting base 2.5 is rotatably connected to the base 2.6 via a bearing 2.5. The base 2.6 is fixed on the operating table 1. The mounting base 2.5 is provided with a pin 2.7. Both the mounting base 2.5 and the base 2.6 are provided with insertion holes adapted to the pin 2.7. The housing 2.2 is rotatably connected to the base 2.6, and the lifting mechanism 2 can rotate. In addition, the rotation is restricted by the pin 2.7. During the stirring operation, the pin 2.7 is removed, and the lifting mechanism 2 is manually rotated so that the stirring mechanism 6 is aligned with the furnace opening. When adding materials, the lifting mechanism 2 raises the stirring mechanism 6, and then the lifting mechanism 2 is manually rotated back to its original position and the pin 2.7 is inserted to fix it. Furthermore, support rollers 2.9 are mounted on both the upper and lower sides of the fixed rod 2.8 via wheel frames. The support rollers 2.9 are in rolling contact with the housing 2.2, and the fixed rod 2.8 is supported and guided to move by the support rollers 2.9.

[0016] Example 3: Unlike Example 1, it also includes a flue pipe 4, which is connected to a dust collection hood 3 located above the intermediate frequency furnace 7. A negative pressure fan 5 is installed on the flue pipe 4. The negative pressure fan 5 draws air, and the dust collection hood 3 collects the smoke and dust.

[0017] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents in the content of this utility model.

Claims

1. A stirring device for melting in a medium-frequency furnace, comprising an operating platform (1) and a medium-frequency furnace (7), characterized in that: The upper part of the operating platform (1) is provided with a lifting mechanism (2) near the medium frequency furnace (7). The lifting mechanism (2) drives the stirring mechanism (6) to move vertically in and out of the medium frequency furnace (7). The stirring mechanism (6) includes a stirring shaft (6.1). The stirring shaft (6.1) is driven to rotate by a motor. The shaft body of the stirring shaft (6.1) is provided with a pressure cap (6.3). The pressure cap (6.3) is provided with multiple through holes (6.2) around its center ring. The shaft body of the stirring shaft (6.1) is provided with a stirring frame (6.4) below the pressure cap (6.3).

2. The stirring device for medium-frequency furnace smelting according to claim 1, characterized in that: The lifting mechanism (2) includes a housing (2.2), on which a lead screw (2.4) is rotatably mounted. A motor (2.1) for driving the lead screw (2.4) to rotate is provided at the upper end of the housing (2.2). The lead screw (2.4) is fitted with a lead screw nut seat (2.3). A fixed rod (2.8) is connected to the lead screw nut seat (2.3). The end of the fixed rod (2.8) is rotatably connected to the stirring shaft (6.1) of the stirring mechanism (6) through a bearing.

3. The stirring device for medium-frequency furnace smelting according to claim 2, characterized in that: The lower end of the housing (2.2) is provided with a mounting base (2.5). The mounting base (2.5) is rotatably connected to the base (2.6) through a bearing. The base (2.6) is fixed on the operating table (1). The mounting base (2.5) is provided with a pin (2.7). Both the mounting base (2.5) and the base (2.6) are provided with a socket that matches the pin (2.7).

4. The stirring device for medium-frequency furnace smelting according to claim 2, characterized in that: The upper and lower sides of the fixed rod (2.8) are equipped with support rollers (2.9) via wheel frames, and the support rollers (2.9) are in rolling contact with the housing (2.2).

5. The stirring device for medium-frequency furnace smelting according to claim 1, characterized in that: It also includes a flue pipe (4), which is connected to a dust collection hood (3) located above the medium frequency furnace (7), and a negative pressure fan (5) is installed on the flue pipe (4).

6. The stirring device for medium-frequency furnace smelting according to claim 1, characterized in that: The diameter of the pressure cap (6.3) is 5-10 cm smaller than the inner diameter of the medium frequency furnace (7), and the pressure cap (6.3) has a conical edge.

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