Slag salvaging device for casting electric furnace

Abstract

The utility model discloses a slag salvaging device for a casting electric furnace, which comprises a lifting device, a swing arm, a slag salvaging device and a rotating device, the lifting device is mounted on the rotating device, one end of the swing arm is connected with the lifting device, and the other end of the swing arm is connected with the slag salvaging device; the slag salvaging device comprises a conical slag salvaging hopper, a positioning ring, fixing rods, a filter plate, a positioning plate and an L-shaped positioning ring, the upper end of the conical slag salvaging hopper is connected with the positioning ring, the positioning ring is connected with the swing arm through the fixing rods, the L-shaped positioning ring is arranged in the middle of the conical slag salvaging hopper, the positioning plate is connected into the L-shaped positioning ring, and the filter plate is arranged in the L-shaped positioning ring. The filter plate is arranged on the L-shaped positioning ring, and a plurality of transition holes are formed in the positioning plate; the slag salvaging device for the casting electric furnace is simple in structure, convenient to use and practical, molten metal is driven by the stirring blades to rotate, floating metal impurities enter the conical slag salvaging hopper through rotational flow, and meanwhile bubbles can be reduced through the flowing molten metal.

Description

Technical Field

[0001] This utility model belongs to the field of slag removal technology, specifically relating to a slag removal device for casting electric furnaces. Background Technology

[0002] The casting electric furnace utilizes a medium-frequency induction furnace, which is the equipment used in the original casting industry. Casting is a process in which metal is melted into a liquid that meets certain requirements and poured into a mold. After cooling and solidification, and cleaning, a casting with a predetermined shape, size and performance is obtained. In traditional casting electric furnaces, slag is removed manually with a steel spoon. However, this method of slag removal carries away the molten metal being retrieved, and the structure of the steel spoon and the furnace opening makes it difficult to remove the slag that is stuck to the furnace opening wall. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a slag removal device for casting electric furnaces. It has a simple structure and is convenient and practical. The stirring blade drives the molten metal to rotate, so that the floating metal impurities enter the conical slag removal hopper through the swirling flow. At the same time, the flowing molten metal can reduce the generation of bubbles.

[0004] A slag removal device for a casting electric furnace includes a lifting device, a swing arm, a slag removal device, and a rotating device. The lifting device is mounted on the rotating device. One end of the swing arm is connected to the lifting device, and the other end is connected to the slag removal device. The slag removal device includes a conical slag hopper, a positioning ring, a fixing rod, a filter plate, a positioning plate, and an L-shaped positioning ring. The upper end of the conical slag hopper is connected to the positioning ring. The positioning ring is connected to the swing arm through several fixing rods. The L-shaped positioning ring is located in the middle of the conical slag hopper. The positioning plate is connected inside the L-shaped positioning ring. The filter plate is located on the L-shaped positioning ring. Several transition holes are provided on the positioning plate.

[0005] Preferably, the device includes a stirring motor, a transmission pulley, a stirring pulley, a rotating shaft, stirring blades, and a transmission belt. The stirring motor is connected to one end of the swing arm, and the power rod is connected to the transmission pulley. The rotating shaft is movably connected to one end of the swing arm away from the stirring motor. One end of the rotating shaft is connected to the stirring pulley, and the other end passes through the conical slag hopper, the filter plate, and the positioning plate and is connected to the stirring blades. The transmission pulley is connected to the stirring pulley via the transmission belt.

[0006] Preferably, the positioning plate is connected to an overflow prevention pipe through which the rotating shaft passes.

[0007] Preferably, the conical slag hopper has several overflow holes at one end near the positioning ring.

[0008] Preferably, the overflow hole is elongated.

[0009] Preferably, the fixing rod is a telescopic rod.

[0010] Beneficial effects:

[0011] (1) The present invention provides a slag removal device for casting electric furnace. It has a simple structure and is convenient and practical. The stirring blade drives the molten metal to rotate, so that the floating metal impurities enter the conical slag removal hopper through the swirling flow. At the same time, the flowing molten metal can reduce the occurrence of bubbles.

[0012] (2) The present invention provides a slag removal device for a casting electric furnace, which fixes the filter plate with an L-shaped positioning ring and filters out impurities in conjunction with the filter plate to achieve the purpose of rapid slag removal.

[0013] (3) The present invention provides a slag removal device for casting electric furnaces, which controls the position of the conical slag removal bucket submerged in molten metal by means of a lifting device, so as to avoid the change in the height of the molten metal surface when the molten metal is stirred and rotated into a vortex, which would prevent the slag from entering the conical slag removal bucket through the overflow hole for slag removal. Attached Figure Description

[0014] Figure 1 A schematic diagram of the slag removal device for electric furnaces;

[0015] Figure 2 This is a schematic diagram of the slag removal device;

[0016] 1-Lifting device, 2-Swing arm, 3-Agitator motor, 4-Transmission pulley, 5-Agitator pulley, 6-Rotating shaft, 7-Agitator blade, 8-Slag removal device, 81-Conical slag removal hopper, 82-Positioning ring, 83-Fixing rod, 84-Filter plate, 85-Positioning plate, 86-Transition hole, 87-L-shaped positioning ring, 88-Overflow prevention pipe, 89-Overflow hole. Detailed Implementation

[0017] The embodiments of this utility model are further described below with reference to the accompanying drawings.

[0018] Example 1

[0019] like Figures 1 to 2As shown; a slag removal device for a casting electric furnace includes a lifting device 1, a swing arm 2, a slag removal device 8, and a rotating device. The lifting device 1 is mounted on the rotating device. One end of the swing arm 2 is connected to the lifting device 1, and the other end is connected to the slag removal device 8. The slag removal device 8 includes a conical slag hopper 81, a positioning ring 82, a fixing rod 83, a filter plate 84, a positioning plate 85, and an L-shaped positioning ring 87. The upper end of the conical slag hopper 81 is connected to the positioning ring 82. The positioning ring 82 is connected to the swing arm 2 through several fixing rods 83. The L-shaped positioning ring 87 is located in the middle of the conical slag hopper 81. The positioning plate 85 is connected inside the L-shaped positioning ring 87. The filter plate 84 is located on the L-shaped positioning ring 87. The positioning plate 85 has an opening on it. The device includes several transition holes 86; it comprises a stirring motor 3, a transmission pulley 4, a stirring pulley 5, a rotating shaft 6, a stirring blade 7, and a transmission belt. The stirring motor 3 is connected to one end of the swing arm 2, and the power rod is connected to the transmission pulley 4. The rotating shaft 6 is movably connected to one end of the swing arm 2 away from the stirring motor 3. One end of the rotating shaft 6 is connected to the stirring pulley 5, and the other end passes through the conical slag hopper 81, the filter plate 84, and the positioning plate 85, and is connected to the stirring blade 7. The transmission pulley 4 is connected to the stirring pulley 5 via the transmission belt. An overflow prevention pipe 88 for the rotating shaft 6 to pass through is connected to the positioning plate 85. Several overflow holes 89 are provided at the end of the conical slag hopper 81 near the positioning ring 82. The overflow holes 89 are elongated. The fixing rod 83 is a telescopic rod.

[0020] The rotating device drives the lifting device 1 to rotate, causing the slag removal device 8 to move above the furnace opening. The lifting device 1 then drives the rotating shaft 6 and the slag removal device 8 to descend, causing the conical slag removal hopper 81 and the stirring blades 7 to enter the molten metal. Simultaneously, the position of the conical slag removal hopper 81 submerged in the molten metal is controlled, and the molten metal surface is controlled to be submerged at the overflow hole 89. The stirring motor 3 is then activated, driving the transmission pulley 4 to rotate. The transmission pulley 4, through the transmission belt, drives the stirring pulley 5 to rotate. The stirring pulley 5, through the rotating shaft 6, drives the stirring blades 7 to rotate. The rotation of the stirring blades 7... The liquid is stirred to create a vortex on the surface of the molten metal at the furnace opening. The height of the overflow hole 89 is then controlled to allow the molten metal to flow through the overflow hole 89 into the space between the conical slag hopper 81 and the overflow prevention pipe 88. Impurities floating on the surface of the molten metal are filtered and left on the filter plate 84. The molten metal then flows out through the filter plate 84, the transition hole 86, and the conical slag hopper 81. Setting the overflow hole 89 to be elongated increases the area in which the molten metal flows into the conical slag hopper 81. The relative position of the conical slag hopper 81 and the stirring blade 7 is adjusted by the telescopic rod.

[0021] The specific embodiments of this utility model have been described in detail above, but they are merely examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model are covered within the scope of this utility model.

Claims

1. A slag removal device for a casting electric furnace, characterized in that: The device includes a lifting device (1), a swing arm (2), a slag removal device (8), and a rotating device. The lifting device (1) is mounted on the rotating device. One end of the swing arm (2) is connected to the lifting device (1), and the other end is connected to the slag removal device (8). The slag removal device (8) includes a conical slag removal bucket (81), a positioning ring (82), a fixing rod (83), a filter plate (84), a positioning plate (85), and an L-shaped positioning ring (87). The upper end of the conical slag removal bucket (81) is connected to the positioning ring (82). The positioning ring (82) is connected to the swing arm (2) through several fixing rods (83). The L-shaped positioning ring (87) is located in the middle of the conical slag removal bucket (81). The positioning plate (85) is connected inside the L-shaped positioning ring (87). The filter plate (84) is located on the L-shaped positioning ring (87). Several transition holes (86) are opened on the positioning plate (85).

2. The slag removal device for a casting electric furnace as described in claim 1, characterized in that: It includes a stirring motor (3), a transmission pulley (4), a stirring pulley (5), a rotating shaft (6), a stirring blade (7), and a transmission belt. The stirring motor (3) is connected to one end of the swing arm (2), and the power rod is connected to the transmission pulley (4). The rotating shaft (6) is movably connected to one end of the swing arm (2) away from the stirring motor (3). One end of the rotating shaft (6) is connected to the stirring pulley (5), and the other end passes through the conical slag hopper (81), the filter plate (84), and the positioning plate (85) and is connected to the stirring blade (7). The transmission pulley (4) is connected to the stirring pulley (5) via the transmission belt.

3. The slag removal device for a casting electric furnace as described in claim 2, characterized in that: An overflow prevention pipe (88) is connected to the positioning plate (85) through which the rotating shaft (6) passes.

4. The slag removal device for a casting electric furnace as described in claim 3, characterized in that: The conical slag hopper (81) has several overflow holes (89) at one end near the positioning ring (82).

5. The slag removal device for a casting electric furnace as described in claim 4, characterized in that: The overflow hole (89) is elongated.

6. The slag removal device for a casting electric furnace as described in claim 5, characterized in that: The fixed rod (83) is a telescopic rod.

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